1145709477 has 24 divisors (see below), whose sum is σ = 1854159840. Its totient is φ = 675600480.

The previous prime is 1145709457. The next prime is 1145709497. The reversal of 1145709477 is 7749075411.

1145709477 is a `hidden beast` number, since 1 + 1 + 4 + 570 + 9 + 4 + 77 = 666.

It is an interprime number because it is at equal distance from previous prime (1145709457) and next prime (1145709497).

It is not a de Polignac number, because 1145709477 - 2⁶ = 1145709413 is a prime.

It is a super-2 number, since 2×1145709477² = 2625300411375227058, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145709437) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 152727 + ... + 160052.

It is an arithmetic number, because the mean of its divisors is an integer number (77256660).

Almost surely, 2^1145709477 is an apocalyptic number.

It is an amenable number.

1145709477 is a deficient number, since it is larger than the sum of its proper divisors (708450363).

1145709477 is a wasteful number, since it uses less digits than its factorization.

1145709477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312833 (or 312830 counting only the distinct ones).

The product of its (nonzero) digits is 246960, while the sum is 45.

The square root of 1145709477 is about 33848.3304905870. The cubic root of 1145709477 is about 1046.3849914249.

The spelling of 1145709477 in words is "one billion, one hundred forty-five million, seven hundred nine thousand, four hundred seventy-seven".